Ignatius Loyola Donnelly
Ignatius Loyola Donnelly (November 3, 1831 – January 1, 1901) was an American U.S. representative, populist writer, and pseudoscientist. He is known primarily now for his fringe theories concerning Atlantis, Catastrophism (especially the idea of an ancient impact event affecting ancient civilizations), and Shakespearean authorship. These works are widely regarded as examples of pseudoscience and pseudohistory.
Also recorded as Ignatius Donnelly · Ignatius L. Donnelly
Ignatius Loyola Donnelly

English Wikipedia · Public domain
- Birth Name
- Ignatius Loyola Donnelly
- Born
- 3 November 1831
- Birthplace
- Philadelphia, Pennsylvania, U.S.
- Died
- 1 January 1901
- Place of death
- Minneapolis, Minnesota, U.S.
- Occupation
- Attorney Author
- Nationality
- United States
- Languages
- English
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Documentary summary
Ignatius Loyola Donnelly (November 3, 1831 – January 1, 1901) was an American U.S. representative, populist writer, and pseudoscientist. He is known primarily now for his fringe theories concerning Atlantis, Catastrophism (especially the idea of an ancient impact event affecting ancient civilizations), and Shakespearean authorship. These works are widely regarded as examples of pseudoscience and pseudohistory.
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Note VALÉORINE
Ignatius Loyola Donnelly (1831–1901) was an American lawyer, member of parliament and novelist, among other activities. Born in Philadelphia, the lawyer died in Minneapolis. Ignatius Loyola Donnelly was also known as Edmund Boisgilbert. Ignatius Loyola Donnelly held the positions of member of the Minnesota House of Representatives and member of the State Senate of Minnesota, among others. Languages used include English.
Composed from admitted, traceable facts · 26 September 2026
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wikidata · Q918937 · wikipedia · Ignatius L. Donnelly
In this article
Key facts
Key facts
• State House — Minnesota • Term Start1 — January 4, 1897 • Term End1 — January 1, 1899 • Constituency1 — 24th district • Term Start2 — January 3, 1887 • Term End2 — January 6, 1889 • Constituency2 — 25th district • State Senate3 — Minnesota • Term Start3 — January 5, 1891 • Term End3 — January 6, 1895 • Constituency3 — 24th district • Term Start4 — January 6, 1874 • Term End4 — January 6, 1879 • Constituency4 — 20th district • State5 — Minnesota • Term Start5 — March 4, 1863 • Term End5 — March 3, 1869 • Predecessor5 — Cyrus Aldrich • Successor5 — Eugene McLanahan Wilson • Order6 — 2nd • Office6 — Lieutenant Governor of Minnesota • Term Start6 — January 2, 1860 • Term End6 — March 4, 1863 • Governor6 — Alexander Ramsey • Predecessor6 — William Holcombe • Successor6 — Henry Adoniram Swift • Birth Name — Ignatius Loyola Donnelly • Born — 3 November 1831 • Birthplace — Philadelphia, Pennsylvania, U.S. • Died — 1 January 1901 • Place of death — Minneapolis, Minnesota, U.S. • Party — Democratic (before 1857, 1884–1887) Republican (1857–1884) Independent (1887–1892) People's (1892–1901) • Occupation — Attorney Author • Children — 3
Life and career
Life and career
Donnelly was the son of Philip Carrol Donnelly, an immigrant from Fintona, County Tyrone, Ireland, who had settled in Philadelphia, Pennsylvania. His sister was the writer Eleanor C. Donnelly. On June 29, 1826, Philip had married Catherine Gavin, who was the daughter of John Gavin, also an immigrant from Fintona, County Tyrone, Ireland. After starting as a peddler, Philip studied medicine at the Philadelphia College of Medicine. Catherine provided for her children by operating a pawn shop. Ignatius, her youngest son, was admitted to the prestigious Central High School, the second oldest public high school in the United States. There he studied under the presidency of John S. Hart, excelling primarily in literature. Donnelly decided to become a lawyer and became a clerk for Benjamin Brewster, who later became Attorney General of the United States. Donnelly was admitted to the bar in 1852. In 1855, he married Katherine McCaffrey, with whom he had three children. In 1855, he resigned his clerkship, entered politics with campaign speeches for Democratic candidates, and participated in communal home building schemes. He fell away from the Catholic Church sometime in the 1850s, and thereafter, never participated in any organized religion. Donnelly moved to the Minnesota Territory in 1857 amidst rumors of a financial scandal, and there he settled in Dakota County. He initiated a utopian community called Nininger City, together with several partners. However, the Panic of 1857 doomed the attempt at a cooperative farm and community and left Donnelly deeply in debt. His wife Katherine died in 1894. In 1898, he married his secretary, Marian Hanson. Donnelly died on January 1, 1901, in Minneapolis, Minnesota, age 69 years. He is buried at Calvary Cemetery in St. Paul, Minnesota. His personal papers are archived at the Minnesota Historical Society.
Political and literary career
Political and literary career
Donnelly entered politics, now a Republican, with two unsuccessful campaigns for the state legislature (1857, 1858). Despite not being elected, Donnelly was recognized as a highly effective political speaker, which led to a successful campaign for lieutenant governor, a position he held from 1860 to 1863. He was a Radical Republican Congressman from Minnesota in the 38th, 39th, and 40th congresses, (1863–1869), a state senator from 1874 to 1878 and 1891–1894 and a state representative from 1887 to 1888 and 1897–1898. As a legislator, he advocated extending the powers of the Freedmen's Bureau to provide education for freedmen so that they could protect themselves once the bureau was withdrawn. Donnelly was also an early supporter of women's suffrage. After leaving the Minnesota State Senate in 1878, he returned to his law practice and writing. In 1877, Donnelly spoke at a meeting of 10,000 people where he read his preamble to the People's Party conference platform. The document of 12 short paragraphs, as altered slightly for the first nominating convention in Omaha that July, was the pithiest and soon became the most widely circulated statement of the Populist credo. Donnelly discussed corruption within politics and voting, and newspapers that distributed false and biased material. He stressed that Populists needed to take back their own country. In 1882, he published Atlantis: The Antediluvian World, his best-known work. It details theories concerning the mythical lost continent of Atlantis. The book sold well and is widely credited with initiating the theme of Atlantis as an antediluvian civilization that became such a feature of popular literature during the 20th century and contributed to the emergence of Mayanism. Donnelly suggested that Atlantis, whose story was told by Plato in the dialogues Timaeus and Critias, had been destroyed during the event remembered in the Bible as the Great Flood. He cited research on the ancient Maya civilization by Charles Étienne Brasseur de Bourbourg and Augustus Le Plongeon, claiming that Atlantis had been the common origin of ancient civilizations in Africa (especially ancient Egypt), Europe, and the Americas. He also thought that it had been the original home of an Aryan race whose red-haired, blue-eyed descendants could be found in Ireland. Donnelly wrote that Ireland was the "Garden of Phoebus" (Hyperborea) of the Western mythologists. A year after Atlantis, he published Ragnarok: The Age of Fire and Gravel, in which he expounded his belief that the Flood, as well as the destruction of Atlantis and the extinction of the mammoth, had been brought about by the near-collision of the Earth with a massive comet. This book also sold well, and both books seem to have had an important influence on the development of Immanuel Velikovsky's controversial ideas half a century later. • Illustration — Donnelly c. 1898 by Frederick Gutekunst In 1888, he published The Great Cryptogram in which he proposed that Shakespeare's plays had been written by Francis Bacon, an idea that was popular during the late 19th and early 20th century. He then traveled to England to arrange the English publication of his book by Sampson Low, speaking at the Oxford (and Cambridge) Union in which his thesis "Resolved, that the works of William Shakespeare were composed by Francis Bacon" was put to an unsuccessful vote. The book was a complete failure, and Donnelly was discredited. Donnelly also made several other campaigns for public office during the 1880s. He made a losing campaign for Congress, this time as a Democrat, in 1884. In 1887, he successfully campaigned for a seat in the Minnesota State Legislature as an independent. During this period, he was also an organizer of the Minnesota Farmers' Alliance. In 1892, Donnelly wrote the preamble of the People's Party's Omaha Platform for the presidential campaign of that year. He was nominated for Vice President of the United States in 1900 by the People's Party, also known as the Populist Party. The People's Party was a development of the National Farmers' Alliance, and had a platform that demanded the abandonment of the gold standard and later for the adoption of free silver, the abolition of national banks, a graduated income tax, a direct election of senators, civil service reform, and an eight-hour day. That year, Donnelly also campaigned for governor of Minnesota but was defeated. The People's Party protested the railroad companies corrupting government and advocated government regulation of the railroads. Donnelly had a key leadership role in this party, yet he received $10,000 from the Lake Superior and Mississippi Railroad Company.
State park
State park
During the 1930s, an organization was formed to lobby for the creation of a state park at Donnelly's home at Nininger near Hastings, Minnesota. The house was still standing in 1939, but the effort failed and the house has since been demolished.
Works
Works
His books include: • The Mourner's Vision: A Poem (1850), a long poem he wrote at the age of 18. • Atlantis: The Antediluvian World (1882), in which he attempted to establish that all known ancient civilizations were descended from its high-Neolithic culture. • Ragnarok: The Age of Fire and Gravel (1883), in which he proposed that a comet hit the earth in prehistoric times and destroyed a high civilization. • The Shakespeare Myth (1887) • Essay on the Sonnets of Shakespeare • The Great Cryptogram: Francis Bacon's Cipher in Shakespeare's Plays (1888), in which he maintained he had discovered codes in the works of Shakespeare indicating that their true author was Francis Bacon. • Caesar's Column (1890), a science fiction novel set during 1988 about a worker revolt against a global oligarchy. (Published under the pseudonym of Edmund Boisgilbert.) • Doctor Huguet: A Novel (1891) (Published under the pseudonym of Edmund Boisgilbert.) • The Golden Bottle or the Story of Ephraim Benezet of Kansas (1892) • The Bryan Campaign for the American People's Money (1896) • The Cipher in the Plays, and on the Tombstone (1899)
Identity
Identity
Ignatius Loyola Donnelly is recorded with the occupation science fiction writer. Recorded as politician, novelist, writer, suffragist and lawyer. Established in Library of Congress under n80005270. Established in FAST under 48742.

Ignatius Loyola Donnelly, "Presidential Possibilities" Advertising Card Set, ca. 1892 (4360030022)
Cornell University Library · "Presidential Possibilities" Advertising Card Set, ca. 1892
Life and career
Dated record
Life and career
The full dated record · 2 entries
1831
Ignatius Loyola Donnelly was born on 3 November 1831.
1901
Ignatius Loyola Donnelly died on 1 January 1901.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
Ignatius Loyola Donnelly was born at Philadelphia.
Birthplace
Ignatius Loyola Donnelly died at Minneapolis.
Deathplace
Philadelphia.
Birth place
Minneapolis.
Death place
Reception
Donnelly's writings on Atlantis have been rejected by scholars and scientists. He has been described as a crank and pseudoscience promoter. Gordon Stein has noted that "most of what Donnelly said was highly questionable or downright wrong." However, Donnelly's concept of "hyperdiffusionism," which purports to detect prehistoric catastrophes in the mythologies of multiple unrelated cultures, is credited as inspiring J. R. R. Tolkien's fictional Númenor. In his 1939 essay "On Fairy-Stories," Tolkien gave some credence to diffusion as a source of mythology.
Primary material
Documents and archives
reference work
- “Ignatius L. Donnelly”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
institutional register
- Wikidata, structured authority record Q918937: Ignatius Loyola Donnelly
General reference · Wikimedia Foundation
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.University of Georgia Press. Religious Diversity and American Religious History: Studies in Traditions and Cultures. 185. 1997. 9780820319186.
- 2.MnPALS Union Catalog – Basic Search at www.mnpals.net
- 3.Howard, Victor B. Religion and the Radical Republican Movement, 1860–1870. The University Press of Kentucky. 110. 2015. 9780813161440.
- 4.Minnesota Legislative Reference Library. Donnelly, Ignatius. Legislators, Past and Present.
- 5.Kazin, Michael. The Populist Persuasion. eReader. 1995. 978-0801485589.
- 6.Donnelly, Ignatius. Atlantis: the antediluvian world. New York: Harper & Brothers. 1882.
- 7.Lens, Sidney. The Labor Wars: From the Molly Maguires to the Sitdowns. Doubleday & Co.: NY, 1973. 365 pp., p. 36.
- 8.A personal reminiscence of a visit to Nininger during the 1930s is available at the Internet Sacred Text Archive|Sacred-Texts website.
- 9.Linse, Pat. (2002). Atlantis: The Search for a Lost Continent. In Michael Shermer. The Skeptic Encyclopedia of Pseudoscience. ABC-CLIO. pp. 297–307.
- 10.Gardner, Martin. (1957). Fads and Fallacies in the Name of Science. Dover Publications. pp. 35–37.
- 11.Floyd, E. Randall. (2005). The Good, the Bad and the Mad: Some Weird People in American History. Fall River Press. p. 52.
- 12.Stein, Gordon. (1993). Encyclopedia of Hoaxes. Gale Group. p. 52.
- 13.Guimont, Edward. J. R. R. Tolkien's Legendarium as Heterodox Palaeoscience. Interdisciplinary Science Reviews. 49. 3–4. 424–437. June 2024. 10.1177/03080188241260144.
Bibliography printed in the source article · 5
- Bovee, John (1969). 'Doctor Huguet: Donnelly on Being Black', Minnesota History, vol. 41 (no. 6), pp. 286–94.
- William Friedman and Elizebeth Friedman, The Shakespearean ciphers examined, Cambridge University Press, 1957. Chapter III.
- cite journal
- Ridge, M (1962). Ignatius Donnelly: The Portrait of a Politician, Chicago: University of Chicago Press, reprinted 1991 by Minnesota Historical Society Press.
- in the Biographical Directory of the United States Congress
References
Citations
References
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reference work
Secondary witnessinstitutional register
Wikidata, structured authority record Q918937: Ignatius Loyola DonnellyWikimedia Foundation
General reference
Further particulars
Held on the record
Further particulars
Open the remaining particulars
He also worked under the name Edmund Boisgilbert. The authorities additionally record the headings Ignatius Donnelly and Ignatius L. His recorded language was English. His recorded confession was Catholicism. Recorded positions include United States representative, member of the Minnesota House of Representatives, member of the State Senate of Minnesota and Lieutenant Governor of Minnesota. He worked at Washington, D.C.
Identity and origins
Career and activity
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 15 August 2026.
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